GS ▸ cs:0x1000 (= 0x31000) ▸ OS use flat memory model nowadays ▸ Segment Register no longer represent the base of a segment, but the index in Descriptor Table  11
if result is 0 e.g. 100-100=0 ▸ Carry Flag set if carry of borrow a bit beyond the size of register e.g. 0 - 1 = 4294967295 e.g. 4294967295 + 1 = 0  14
if above JNBE Jump if not below or not equal ( Jump if above) JAE Jump if above or equal JNB Jump if not below (=JAE) JB Jump if below JNAE Jump if not above or not equal(=JB) JBE Jump if below or equal JNA Jump if not above(=JBE) JG Jump if greater JNLE Jump if not less or not equal(=JG) JGE Jump if greater or equal JNL Jump if not less (=JGE) JL Jump if less JNGE Jump if not greater or not equal(=JL) JLE Jump if less or equal JNG Jump if not greater (=JLE) JE Jump if equal JNE Jump if not equal JMP 不管,跳 普通 其他 JC Jump if carry flag set JS Jump if sign flag set 各種...